Question 1

Which of the following approaches are used to achieve reliable systems?
A)fault prevention
B)fault removal
C)fault tolerance
D)all of the mentioned

Accepted Answer

All of the mentioned approaches, including fault prevention, fault removal, and fault tolerance, are used to achieve reliable systems. Fault prevention aims to avoid the occurrence of faults, fault removal involves detecting and correcting faults, and fault tolerance is about ensuring system operation in the presence of faults.

Question 2

All fault-tolerant techniques rely on
A)integrity
B)dependability
C)redundancy
D)none of the mentioned

Accepted Answer

D

Question 3

Exception handling is a type of
A)forward error recovery mechanism
B)backward error recovery mechanism
C)all of the mentioned
D)none of the mentioned

Accepted Answer

A

Question 4

Which of the following Error Detection checks is not a part of Application detection?
A)hardware checks
B)timing checks
C)reversal checks
D)coding checks

Accepted Answer

Hardware checks are not a part of Application detection; they are typically managed at the hardware or system level, whereas application detection focuses on errors within the application layer, such as timing, reversal, and coding errors.

Question 5

Which of the following is not a phase of "bathtub curve" of hardware reliability?
A)useful life
B)burn-in
C)wear-out
D)time

Accepted Answer

The "bathtub curve" of hardware reliability includes three phases: burn-in, useful life, and wear-out. "Time" is not a phase of the bathtub curve; it is the axis along which the curve is plotted, representing the duration of the product's life cycle.

Question 6

How is software reliability defined?
A)time
B)efficiency
C)quality
D)speed

Accepted Answer

The answer of How is software reliability defined?
A)time
B)efficiency
C)quality
D)speed...

Question 7

How is reliability and failure intensity related to each other?
A)direct relation
B)inverse relation
C)no relation
D)none of the mentioned

Accepted Answer

Reliability and failure intensity have an inverse relationship. As reliability increases, the failure intensity, or the frequency of failures, decreases.

Question 8

What is risk?
A)negative consequence that could occur
B)negative consequence that will occur
C)negative consequence that must occur
D)negative consequence that shall occur

Accepted Answer

Risk refers to the possibility of a negative consequence that could occur, not one that is certain or guaranteed to happen.

Question 9

When can customer says that the quality of the product is too good?
A)software meets its defined specification
B)software is technically excellent
C)software has few bugs
D)software fulfills expectations of customer

Accepted Answer

The quality of a product being "too good" is subjective and is determined by how well it meets or exceeds the customer's expectations, not just by its technical excellence, adherence to specifications, or the number of bugs it has.

Question 10

It defines how a system prevents or responds to bugs, errors, faults, or failures.
A)reliability
B)fault tolerance
C)quality
D)none of the above

Accepted Answer

Fault tolerance specifically refers to the ability of a system to continue operating without interruption when it encounters a fault, error, or failure. It encompasses the methods and mechanisms that enable a system to respond to and recover from these issues, ensuring reliability and continuous operation.

Question 11

The problem that threatens the success of a project but which has not yet happened is called as __________
A)bug
B)error
C)risk
D)defect

Accepted Answer

A risk is a potential problem that could affect the success of a project if it occurs. It represents something that has not yet happened but, if it does, will have a negative impact on the project's objectives.

Question 12

Bug is the same name of _______.
A)error
B)incident
C)mistake
D)defect

Accepted Answer

Bug is another name for a defect.

Question 13

Which of the followings is NOT a White Box Technique?
A)statement testing
B)path testing
C)data flow testing
D)none of the above

Accepted Answer

All the options listed (statement testing, path testing, and data flow testing) are indeed white box testing techniques, which focus on the internal structure of the code. Therefore, stating that none of the options is a white box technique is incorrect.

Question 14

Bugs can enter software in any of _____ stages.
A)1
B)2
C)3
D)4

Accepted Answer

Bugs can enter software at any stage of its development, including planning, design, coding, and testing phases, making it a total of 4 stages.

Question 15

The number of occurrences of bugs is ____________ proportional to the experience of the software developer.
A)inversely
B)directly
C)no relation exists
D)none of the above

Accepted Answer

The number of occurrences of bugs is generally inversely proportional to the experience of the software developer, as more experienced developers are likely to make fewer mistakes and have better debugging skills.

Question 16

Techniques of software debugging are
A)print statements
B)breakpoints
C)conditional compilation
D)all of the above

Accepted Answer

All of the options listed are techniques used in software debugging. Print statements help in tracking the flow of execution and values of variables. Breakpoints allow a developer to pause the execution of a program at a specific point to examine the state of the system. Conditional compilation can be used to include or exclude parts of the code for debugging purposes.

Question 17

Hardware tools for debugging include:
A)ice
B)cro
C)logic analyzer
D)none of the above

Accepted Answer

The answer of Hardware tools for debugging include:
A)ice
B)cro
C)logic analyzer
D)none of...

Question 18

File storage is_______, but reconstructing lost data is expensive or impossible.
A)cheap
B)expensive
C)free
D)none of the above

Accepted Answer

File storage is generally cheap, especially with the advent of cloud storage solutions and large-scale data centers. However, if data is lost or corrupted, recovering it can be a costly and sometimes impossible task, depending on the backups and data recovery solutions in place.

Question 19

Design issues for a user interface include:
A)response time
B)error handling
C)help facilities
D)all of the above

Accepted Answer

All of the options listed are important design issues for a user interface. Response time affects user satisfaction and productivity, error handling is crucial for preventing and managing mistakes, and help facilities are essential for assisting users in understanding and using the software effectively.

Question 20

Which one of the following is a real time operating system?
A)rtlinux
B)vxworks
C)windows ce
D)all of the mentioned

Accepted Answer

All of the mentioned options, rtlinux, vxworks, and windows ce, are examples of real-time operating systems (RTOS). Each is designed to serve real-time application process data as it comes in, typically without buffer delays.

Quiz 2: Faults, and Bugs in Software and Hardware Systems

Which of the following approaches are used to achieve reliable systems?

All fault-tolerant techniques rely on

Exception handling is a type of

Which of the following Error Detection checks is not a part of Application detection?

Which of the following is not a phase of "bathtub curve" of hardware reliability?

How is software reliability defined?

How is reliability and failure intensity related to each other?

What is risk?

When can customer says that the quality of the product is too good?

It defines how a system prevents or responds to bugs, errors, faults, or failures.

The problem that threatens the success of a project but which has not yet happened is called as __________

Bug is the same name of _______.

Which of the followings is NOT a White Box Technique?

Bugs can enter software in any of _____ stages.

The number of occurrences of bugs is ____________ proportional to the experience of the software developer.

Techniques of software debugging are

Hardware tools for debugging include:

File storage is_______, but reconstructing lost data is expensive or impossible.

Design issues for a user interface include:

Which one of the following is a real time operating system?